From 25ac76a2517a23510831fa8a849585747f04d688 Mon Sep 17 00:00:00 2001
From: Dean Camera <dean@fourwalledcubicle.com>
Date: Sun, 1 Apr 2012 13:39:04 +0000
Subject: Reverted AVRISP-MKII clone project watchdog based command timeout
 patch in favour of a hardware timer, to allow for use in devices with WDTRST
 fuse programmed.

---
 Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c     |  8 ++++----
 Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c    | 10 +++++-----
 Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c |  2 +-
 3 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'Projects/AVRISP-MKII/Lib/XPROG')

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
index b8832372f..df0374dea 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
@@ -85,7 +85,7 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
 		uint8_t StatusRegister = XPROGTarget_ReceiveByte();
 
 		/* We might have timed out waiting for the status register read response, check here */
-		if (TimeoutExpired)
+		if (!(TimeoutTicksRemaining))
 		  return false;
 
 		/* Check the status register read response to see if the NVM bus is enabled */
@@ -110,7 +110,7 @@ bool TINYNVM_WaitWhileNVMControllerBusy(void)
 		uint8_t StatusRegister = XPROGTarget_ReceiveByte();
 
 		/* We might have timed out waiting for the status register read response, check here */
-		if (TimeoutExpired)
+		if (!(TimeoutTicksRemaining))
 		  return false;
 
 		/* Check to see if the BUSY flag is still set */
@@ -182,14 +182,14 @@ bool TINYNVM_ReadMemory(const uint16_t ReadAddress,
 	/* Send the address of the location to read from */
 	TINYNVM_SendPointerAddress(ReadAddress);
 
-	while (ReadSize-- && !(TimeoutExpired))
+	while (ReadSize-- && TimeoutTicksRemaining)
 	{
 		/* Read the byte of data from the target */
 		XPROGTarget_SendByte(TPI_CMD_SLD | TPI_POINTER_INDIRECT_PI);
 		*(ReadBuffer++) = XPROGTarget_ReceiveByte();
 	}
 
-	return (TimeoutExpired == false);
+	return (TimeoutTicksRemaining > 0);
 }
 
 /** Writes word addressed memory to the target's memory spaces.
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
index e1169d5f1..97154ea1e 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
@@ -80,7 +80,7 @@ bool XMEGANVM_WaitWhileNVMBusBusy(void)
 		uint8_t StatusRegister = XPROGTarget_ReceiveByte();
 
 		/* We might have timed out waiting for the status register read response, check here */
-		if (TimeoutExpired)
+		if (!(TimeoutTicksRemaining))
 		  return false;
 
 		/* Check the status register read response to see if the NVM bus is enabled */
@@ -109,7 +109,7 @@ bool XMEGANVM_WaitWhileNVMControllerBusy(void)
 		uint8_t StatusRegister = XPROGTarget_ReceiveByte();
 
 		/* We might have timed out waiting for the status register read response, check here */
-		if (TimeoutExpired)
+		if (!(TimeoutTicksRemaining))
 		  return false;
 
 		/* Check to see if the BUSY flag is still set */
@@ -209,7 +209,7 @@ bool XMEGANVM_GetMemoryCRC(const uint8_t CRCCommand, uint32_t* const CRCDest)
 	for (uint8_t i = 0; i < XMEGA_CRC_LENGTH_BYTES; i++)
 	  ((uint8_t*)CRCDest)[i] = XPROGTarget_ReceiveByte();
 
-	return (TimeoutExpired == false);
+	return (TimeoutTicksRemaining > 0);
 }
 
 /** Reads memory from the target's memory spaces.
@@ -241,10 +241,10 @@ bool XMEGANVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, uint16
 
 	/* Send a LD command with indirect access and post-increment to read out the bytes */
 	XPROGTarget_SendByte(PDI_CMD_LD | (PDI_POINTER_INDIRECT_PI << 2) | PDI_DATSIZE_1BYTE);
-	while (ReadSize-- && !(TimeoutExpired))
+	while (ReadSize-- && TimeoutTicksRemaining)
 	  *(ReadBuffer++) = XPROGTarget_ReceiveByte();
 
-	return (TimeoutExpired == false);
+	return (TimeoutTicksRemaining > 0);
 }
 
 /** Writes byte addressed memory to the target's memory spaces.
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
index b50ffbd1b..b2f55520a 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
@@ -153,7 +153,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
 	  XPROGTarget_SetRxMode();
 
 	/* Wait until a byte has been received before reading */
-	while (!(UCSR1A & (1 << RXC1)) && !(TimeoutExpired));
+	while (!(UCSR1A & (1 << RXC1)) && TimeoutTicksRemaining);
 
 	return UDR1;
 }
-- 
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